Wadah bin 'Abdullah al-Yashkari وضاح بن عبد الله اليشكري أبو عوانة · The Book on Fasting

the Messenger of Allah said: "Partake of Sahar, for indeed there is a blessing in the Sahar."

the Messenger of Allah said: "The most virtuous fasting after the month of Ramadan is Allah's month Al-Muharram."

"The Messenger of Allah took a covenant from me for three: To not sleep except after performing Witr, to fast three days of every month, and to perform the Duha prayer."

"I would not make up what was due upon me from Ramadan except in Sha'ban, until the Messenger of Allah died."